Effect of the thickness of light absorption layer on the light-induced transverse thermoelectric effect in Bi2Sr2Co2Oy films

Guoying Yan; Liqing Sun; Shufang Wang; Guangsheng Fu

doi:10.3788/COL201513.063101

Journals >Chinese Optics Letters >Volume 13 >Issue 6 >Page 063101 > Article

Chinese Optics Letters
Vol. 13, Issue 6, 063101 (2015)

Effect of the thickness of light absorption layer on the light-induced transverse thermoelectric effect in Bi₂Sr₂Co₂O_y films

Guoying Yan^1、2, Liqing Sun², Shufang Wang^2、*, and Guangsheng Fu^1、2、**

Author Affiliations

¹School of Information Engineering, Hebei University of Technology, Tianjin 300401, China

²Hebei Key Lab of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China

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DOI: 10.3788/COL201513.063101 Cite this Article Set citation alerts

Guoying Yan, Liqing Sun, Shufang Wang, Guangsheng Fu. Effect of the thickness of light absorption layer on the light-induced transverse thermoelectric effect in Bi₂Sr₂Co₂O_y films[J]. Chinese Optics Letters, 2015, 13(6): 063101 Copy Citation Text

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(a) Schematic illustration of the LITT measurements on the graphite/BSCO/LAO multilayer structure; (b) schematic crystal structure of BSCO; (c) SEM surface image of the graphite layer coated on the c-axis-tilted BSCO thin film.

Fig. 1. (a) Schematic illustration of the LITT measurements on the graphite/BSCO/LAO multilayer structure; (b) schematic crystal structure of BSCO; (c) SEM surface image of the graphite layer coated on the c-axis-tilted BSCO thin film.

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(a) Light-induced thermal voltage signals from bare and graphite-coated BSCO films upon the illumination of 980 nm cw lasers with a power of 50 mW; (b) voltage amplitude Vp as a function of the graphite layer thickness.

Fig. 2. (a) Light-induced thermal voltage signals from bare and graphite-coated BSCO films upon the illumination of 980 nm cw lasers with a power of 50 mW; (b) voltage amplitude Vp as a function of the graphite layer thickness.

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Fig. 3. Surface temperature of the c-axis-tilted BSCO films coated with different graphite thickness under the illumination of 980 nm laser with the same power density as in Fig. 2.

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Fig. 4. (a) Diagrammatic sketch and boundary conditions for simulation; (b) under the irradiation of a Gaussian-shaped laser, simulated surface temperature distribution along r-axis with different thickness in graphite layer. Inset, calculated average temperature of the illuminated region.

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